Willpower Is a Scarce Resource

Willpower is not infinite. For me it is a scarce resource. With no deliberate way to refill it, it eventually burns out. So do not make it the engine. Treat it as a budget to spend carefully.

• Sleep restores a little for most people, but it is not the main source. After a rough workday with no better tomorrow, a night’s sleep will not bring much back.
• Treat it as scarce: spend it only on behaviors that are effective toward the goal but carry a certain coefficient of friction.
• Willpower alone cannot drive every effective habit. That is exactly why you design systems. When willpower runs dry, the system still nudges your body’s instinct the right way (see Systems Beat Goals and Law 3: Make It Easy).
• Short term you can override temptation with willpower. Long term people are products of their environment. Self-control is a short-term strategy, not a long-term one.
• And choose carefully which battles are actually “necessary” to spend willpower on.

Willpower runs out. The system does not. Save it, and spend it only where the system cannot catch you yet.

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References: Atomic Habits, James Clear, Essentialism, Greg McKeown

Related: back to the whole-book map. Or read Law 3: Make It Easy and Systems Beat Goals.